Fisher Space Pen Black Bullet Pen With Stylus #400B/S Automatic Minimum output is 2 lumens

Minimum output is 2 lumens (1%) for about 150 hours (then the brightness declines to 50%)

Light Body: Made of durable aircraft-grade aluminum

Powered by a rechargeable 18650 lithium-ion battery

A more compact version of the traditional KA-BAR marked with KA-BAR U

Blade style: crowned modified spear-point

Fisher Space Pen Black Bullet Pen With Stylus #400B/S Automatic Minimum output is 2 lumensWhen closed, Bullet Space Pens are the perfect size to carry in your wallet, pocket, purse, car glove box, organizer or toolbox. When open it's a full sized, evenly balanced writing instrument. The original Bullet Space Pen was conceived in July of 1948, Paul Fisher was soon machining a new pen design shaped from solid aluminum. It became our first Fisher ball point pen, the 400 Bullet Pen, and arguably the most popular pen of the twentieth century.